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General Interscope Sub & Amp

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General Interscope Sub & Amp

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pearce_jj

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Evening all

Anyone know how the interscope sub & amp work?

For a start, where is the amp? I read it's in the boot behind the lining on one side, and there is a small box in there but its plastic and I would have expected some exposed metal for cooling with 35W output.

Also it's signal is clearly on the rear channels - is it fed from the rear speakers, or is there a seperate line level feed?

Thanks!
 
pearce_jj said:
Evening all

Anyone know how the interscope sub & amp work?

For a start, where is the amp? I read it's in the boot behind the lining on one side, and there is a small box in there but its plastic and I would have expected some exposed metal for cooling with 35W output
Click to expand...

The amp is in the right side of the boot (1.pic).

Actually the amp is a 4x30 Watt audio amplifier, fitted in the right-hand rear side panel, designed to amplify the audio signal from the car radio for the front and rear speakers.The sub-woofer has its own built-in amplifier.

On the top of the amp there is a heatsink for cooling. (2.pic)
 

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Thanks for the replies all :)

That's the little unit I found, it is absolutely tiny!

That seems to indicate that it's line level feeds then..., I don't suppose your documentation includes a wiring diagram.....?
 
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pearce_jj said:
I don't suppose your documentation includes a wiring diagram.....?
Click to expand...

Of course I have it :D Hope it helps!

Component Code - Description
A001 - BATTERY
B001 - JUNCTION UNIT
C015 - DASHBOARD EARTH, DRIVER'S SIDE
C030 - LEFT REAR EARTH
D001 - FRONT/DASHBOARD COUPLING
D006 - FRONT/REAR COUPLING
D020 - DASHBOARD/REAR COUPLING
D030 - DRIVER'S FRONT DOOR COUPLING
D031 - PASSENGER FRONT DOOR COUPLING
D047 - CLOCK SPRING COUPLING
D168 - COAXIAL CABLE FOR RADIO AERIAL COUPLING
H001 - IGNITION SWITCH
M001 - BODY COMPUTER
P020 - RADIO
P025 - AERIAL POWER SUPPLY
P030 - LEFT REAR SPEAKER
P031 - RIGHT REAR SPEAKER
P035 - SPEAKER IN FRONT DOOR LEFT
P036 - SPEAKER ON PASSENGER FRONT DOOR
P045 - DRIVER'S FRONT TWEETER SPEAKER
P046 - PASSENGER FRONT TWEETER SPEAKER
P070 - RADIO HI-FI AMPLIFIER
P092 - SUBWOOFER
P110 - GPS/GSM AERIAL
 

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csabaszalma said:
The amp is in the right side of the boot (1.pic).

Actually the amp is a 4x30 Watt audio amplifier, fitted in the right-hand rear side panel, designed to amplify the audio signal from the car radio for the front and rear speakers.The sub-woofer has its own built-in amplifier.

On the top of the amp there is a heatsink for cooling. (2.pic)
Click to expand...

Hello, I need, desperately, the same but for grande punto..

Can you help me please?

cheers
 
pearce_jj said:
Thanks for the replies all :)
That's the little unit I found, it is absolutely tiny!
Click to expand...

For completeness, note this comment is incorrect. The wire-frame picture above is quite misleading and in fact the amp is mounted down in the quarter panel just behind the front seat belt (drivers ride, on RHD) inertia reel. And it's quite substantial.

Whatever I was looking at when I posted the above, wasn't the amp!
 
Hello Everyone.

Can anyone help?

I am upgrading the stereo in a 2010 Abarth 500. It has the upgraded sound system (woofer under the drivers seat and amp somewhere in the panel behind the drivers seat).

The new stereo powers up fine but there is no sound at all from the speakers.

The wiring is all okay. The man in Halfords suggested that the new stero needs to send a signal to the car's amp telling it to work.

There is such a wire dangling off the back of the new stereo - but where to plug it??

There is no "tell the amp there is sound" wire or connection with the factory stereo.

Does anyone know what to do?

I'm not after anything too complex - I am just trying to plug in a new stereo. Its made for a FIat 500 so we were expecting less of a headache.

Many thanks

Anthony

:bang:
 
I am answering my own questions here but I spent the whole of yesterday on this and quite a bit of this evening too - so in case this helps anyone else here is what I found out.

The good news is that you don't have to disassemble the car nearly as much as I did.

The problem:

Fitting an aftermarket stereo. It will apply to several / all I guess. Its all working except there is no sound from the speakers.

The Issue:

the aftermarket stereo is not turning on the car's amp. We have an Abarth 500 with the Interscope HiFi upgrade.

The Solution:

Connect the Amplifier Remote Lead from your new aftermarket stereo (Youtube says they are blue and white but mine was orange) and it connects to the ISO block. It needs to connect to ISO block A (B is the speakers and C is the blue green yellow one) pin 5.

If you look on your stock stereo there is a diagram - its the pin called "aut ant".

When you power on a stereo it sends out a 'power on' signal to both the amplifier if installed and the automatic antenna if installed and Fiat (un)helpfully use the automatic antenna signal to power on the factory fit amp and sub woofer.

Anyway -thats the solution. Hoping it helps someone.

:eek:)
 
Hello!!
I see this is an old thread but diggers253, what was the unit you were installing?
Did anyone installed 2din android unit to 500 with interscope?
 
Cagliostro13 said:
Hello!!
I see this is an old thread but diggers253, what was the unit you were installing?
Did anyone installed 2din android unit to 500 with interscope?
Click to expand...

Hi Cagliostro13

I just installed a 2din Android unit in my Bravo with Interscope Hi-Fi audio system (amp+sub).
On the ISO plug, I just forward the ACC key power (+12V) to pins 5 (amp) and 2 (sub), and the system is working, but I can't adjust the subwoofer level (it's working, but very quiet).
I think this is done using canbus communication from original radio.

Did you put your system to work? Can you adjust the subwoofer level?

Thanks
 
Noup, i did not finish it yet, had no time..but, in all my installs before in cars that had amplified system i never spliced new unit to stock amplifier thru iso connector..i always used line out outputs and spliced them to stock amplifier inputs..
And that always worked great..
I don't know what unit did you install, some of the android units have subwoofer volume control, some of them do not..and subwoofer volume control work just on subwoofer line output..because on iso connector there's no sub out..
If you send some specifications of the unit you have installed, i will be able to help you out..
 
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Cagliostro13 said:
Noup, i did not finish it yet, had no time..but, in all my installs before in cars that had amplified system i never spliced new unit to stock amplifier thru iso connector..i always used line out outputs and spliced them to stock amplifier inputs..
And that always worked great..
I don't know what unit did you install, some of the android units have subwoofer volume control, some of them do not..and subwoofer volume control work just on subwoofer line output..because on iso connector there's no sub out..
If you send some specifications of the unit you have installed, i will be able to help you out..
Click to expand...

You can see the unit pinout on the attached image.
Yes, it has sub output, using a RCA connector (B plug). I just connected the A plug, in an adapter, and the connected the ISO plug to it.
And yes, I can confirm that the radio equalizer has an independent slider for sub.

So, you are suggesting me to disconnect the sub speaker from amplifier and then, using an additional cable, connect it directly to the radio Sub out, isn't it?
 

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I would do it different..since your radio has preouts and interscope is amplified system, i would do it this way:
Take two rca cables, cut them in half, side with connectors connect to radio, b connector, one pair to fl and fr, second pair to rl and rr and one rca to sub out, sides with wires connect to iso connector, fl to front left speaker, fr to front right speaker, rl to rear left and rr to rear right and sub out to wires that go to underseat sub..that way you will be able to control sub and you will not have hi/lo converter and sound should improve..
If you have radio connector pin out i can tell you where to connect wires..
Just be sure that you remove converter and that radio speaker wires are not connected together with rca's..
 
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So, you are suggesting me to disconnect the sub speaker from amplifier and then, using an additional cable, connect it directly to the radio Sub out, isn't it?[/QUOTE]

Noup, sub is amplified, amp is built in the enclousure..you have to connect sub out from android radio to signal inputs of the underseat sub..
 
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